The sky on
your birthday.
Hot Gas Halo Detected Around Galaxy NGC 4631
Is our Milky Way Galaxy surrounded by a halo of hot gas? A step toward solving this long-standing mystery was taken recently with Chandra X-ray observations of nearby galaxy NGC 4631. In this composite picture, newly resolved diffuse X-ray emission is shown in blue, superposed on an HST image showing massive stars in red. Since NGC 4631 is similar to the Milky Way, this observation indicates that our own Galaxy is indeed surrounded by a halo of hot X-ray emitting gas.
We cannot put this date's photograph on paper at poster size. We can print the nearest public archive plate to your date instead.
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Released on your day
Space pictures released on your month and day in other years, or a few days either side. Each one is sharp enough to print as a poster.
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The Earth on your day The Earth on 25 July 2001 · Gobi Desert See it as a poster -
Released on 25 July 2011 Sunset glow in Orion See it as a poster -
Released on 25 July 2016 A long-dead star See it as a poster -
Released on 25 July 2023 The sky around the star V960 Mon See it as a poster -
Released on 25 July 2020 Hurricane Hanna is pictured hitting the southern coast of Texas from the International Space Station See it as a poster -
Released on 25 July 2017 Int-Ball Drone Activated on the Space Station See it as a poster
In tropical astrology, 25 JUL 2001 falls under Leo (♌). The sign's window runs from 07-23 through 08-22. Leo is anchored by Regulus, the heart of the Lion, twenty-four parsecs from Earth. The Sun was crossing this region of the sky on 25 JUL 2001.
Questions about July 25, 2001
What space photo was released on July 25, 2001?
NASA's Astronomy Picture of the Day for July 25, 2001 was "Hot Gas Halo Detected Around Galaxy NGC 4631". It's the card at the top of this page.
What was the Moon's phase on July 25, 2001?
A waxing crescent moon, about 23% lit.
What day of the week was July 25, 2001?
July 25, 2001 was a Wednesday, day 206 of the 365 days in 2001.
What did the Sun and the Earth look like on July 25, 2001?
NASA's Terra satellite photographed the whole Earth that day. It's on this page, next to the card.
Is it free?
Yes. Seeing, sharing and downloading the card is free, and there's no account to make.